The Blue Flower is an airship that travels between Novorossiysk and Tehran, with a possible stop at Mount Elbrus.
Aboard the Blue Flower, Passepartout will meet famous dancer Marina Poltavka, who is on her way to Tehran for a performance. Previously, Passeparout was able to meet a man in Minsk who knew her as a youth and is now lovelorn over her. If so, Passepartout can tell Poltavka about him, causing her to stop the Blue Flower in Mount Elbrus instead.